readSignData.m

function [rImgFiles, rRois, rClasses] = readSignData(aFile)
% Reads the traffic sign data.
%
% aFile         Text file that contains the data for the traffic signs
%
% rImgFiles     Cell-Array (1 x n) of Strings containing the names of the image
%               files to operate on
% rRois         (n x 4)-Array containing upper left column, upper left row,
%               lower left column, lower left row of the region of interest
%               of the traffic sign image. The image itself can have a
%               small border so this data will give you the exact bounding
%               box of the sign in the image
% rClasses      (n x 1)-Array providing the classes for each traffic sign

    fID = fopen(aFile, 'r');
    
    fgetl(fID); % discard line with column headers
    
    f = textscan(fID, '%s %*d %*d %d %d %d %d %d', 'Delimiter', ';');
    
    rImgFiles = f{1}; 
    rRois = [f{2}, f{3}, f{4}, f{5}];
    rClasses = f{6};
    
    fclose(fID);
end